I could totally see his spirit animal as a silver fox...and yes I just drew him as one.
reference pic--- https://www.google.com/search?q=robert+downey+jr+acting+lessons&client=tablet-android-hms-tmobile-us&source=lnms&prmd=vni&tbm=isch&sa=X&ved=0ahUKEwjioo7tmNnOAhVEax4KHfwrBCkQ_AUICSgD&biw=962&bih=601#imgrc=rl34XJOP8dA1XM%3A
P.s. he's one of my favorite actors, and no it isn't just because he made an awesome Tony Stark nor is it just because he has very dashing good looks.